Elon Musk is far greater an inventor/entrepreneur than Edison ever was. If Elon accomplishes a fraction of what he's set out to in his life, history books from the year 2500 will relegate Edison to a footnote in the chapter about Musk.
That’s a big claim. Can you back it up with some evidence? Edison played a key role in at least three technologies which transformed life in the 20th century. Musk has led some incremental improvements which are nice but I’m skeptical that he’ll realistically match, much less eclipse, that impact.